Active Ride Control

NOTE:

For the operational conditions of Active Ride Control, refer to "SYSTEM DESCRIPTION - ACTIVE RIDE CONTROL ".
Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform the trouble diagnosis if any DTC is detected.

Symptom			Possible cause	Inspection item
Active Ride Control inoperative/ineffective.	No Active Ride Control assist.		VDC OFF switch is engaged.	Turn VDC OFF switch to the OFF position.
	No Active Ride Control assist.		Engine or transmission DTCs present.	Refer to EC DTCs "DTC INDEX ", or TM DTCs "DTC INDEX " as necessary.
	Bumpy ride on bumpy road.		Certain roads, inclement weather or driving conditions.	System is functioning normally. Confirm the condition with the customer. Refer to "PRECAUTIONS FOR CHASSIS CONTROL (ENGINE BRAKE, ACTIVE RIDE, AND ACTIVE TRACE) ".
	Bumpy ride on bumpy road.		Road wheel tire condition is abnormal Road wheel tire size is abnormal.	Check the road wheel tire.
	High vehicle pitch on bumps.	Ineffective pitch control	Wheel alignment Steering malfunction	Change Active Engine Brake selection in the vehicle information display to ON.
		No pitch control	Brake system malfunction	Refer to "DTC INSPECTION PRIORITY CHART ".
		No engine torque control on curves	Certain roads, inclement weather or driving conditions.	System is functioning normally. Confirm the condition with the customer. Refer to "PRECAUTIONS FOR CHASSIS CONTROL (ENGINE BRAKE, ACTIVE RIDE, AND ACTIVE TRACE) ".